Hod-elevator



(No Model.)

P. 0. HABLAN.

l Hon ELEVATOR. No. 360,587. i Patented Apr. 5,. 1887* UNITED STATES PATENT OFFICE.

PHILIP C URDEN HARLAN, OF ALLEGHENY, PENNSYLVANIA.

HOD-ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 360,587, dated April 5, 1887.

I Application led May 8,1886. Serial No. 201,593. (No model.)v

.T0 all whom it may concern:

Be it known that l, PHILIP CURIDEN HAR- LAN, a citizen ofthe United States, residing at Allegheny, county of Allegheny, and State of Pennsylvania, have invented new and useful Improvements in Hoisting-llachines; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, and to the letters and igures marked thereon.

My invention relates to con nterbalance hoisting-machines in which the operators weight and strength combined on a descending carriage furnish the motive power for an ascending weight or matter to be hoisted, and is particularly adapted to hoisting brick, mortar, and other matter to the upper part of a building in course of erection; and the object of my improvement is to provide a continuous brake or check rope connecting both carriages together, so that any power or friction brought to bear on one will act directly on the opposite carriage, by which means the operator can control the speed of the descending carriage in case his weight is greater than the weight placed upon the ascending carriage, and to aiiord the means of bringing the carriages in motion should his weight not be suliicient to start the opposite carriage. A continuouslytraveling brake or check rope traveling in the same direction with the carriages aii'ords the operator more full control, as it causes less friction on the hands than if such a rope were stationary or running in an opposite direction.

I attain the object of my invention by the mechanism illustrated in the accompanying drawings, in which- Figure l is a representation of the entire machine. Fig. 2 is a det-ail showing a drum, upon which the brake or check rope is wound by means of a crank or lever.

A A A are wooden standards serving as guides upon which the carriages ascend and descend; or, in place of wooden standards, rope or wire rope may be used as guides.

B B are beams or pieces of plank to hold the tops of the standards in position and afford a bearing for the wheels upon which the supportingsrope operates.

C C C C are braces to support and hold the machine in its proper position.

D D are the carriages or platforms of the machine.

E E (see Fig. 2) are drums upon which the surplus of the brake or check rope is coiled, and serve as friction-brakes to lock the machine. Both drums being connected together by the same rope, any power applied to one acts upon the other.

F F are iron bands serving for the purpose of supporting the hods and for attaching the hoisting-rope that supports the carriages.

G G are grooved wheels upon which the supporting or hoisting rope runs.

H H. are the hods.

I is the supporting or hoisting rope.

J J J .I are grooved pulley-wheels upon which the brake or check rope passes over.

K is a grooved wheel secured to the crossbeams B by means of a bolt or hook. rlhis wheel is provided with a swivel, in order that it may be turned around for the purpose of crossing the brake or cheek rope.

L is a continuous brake or check rope connecting both carriages together, and by which means the operator can counterbalance unequal weights ofthe carriages by applying his own power, as by pulling upward his power applies friction to the machine. One advantage of the rope is that it travels just as fast and in the same direction with the carriages, and there is no friction on the hands of the operator, and, in connection with the drums E E, forms a complete lrictioulock for the hodcars.

The manner of operating the machine is as follows: rIhe operator irst places a loaded hod on any of the empty carriages, and then ascends a `ladder placed in any convenient position. Arriving at the top, he first takes hold of the brake or check rope, then steps on the empty carriage. Arriving at the bottom, he then locks the carriages by means of the drum E and its pawl and ratchet, to prevent the loaded carriage at the top from descending. He then places a loaded hod on the empty car riage at the bottom, and once lnore ascends the ladder and removes the loaded hod at the top. Vhen the weight of the operator is slightly too heavy for the ascending weight, the speed can be checked by pulling slightly upward on the brake or check rope. Vhen the loaded carriage is slightly too heavy for the weight Ico comprising wndlasses mounted upon each elevator-car, a check-rope connected at one end to one of said Windlasses and passed through the bottoni of one ear to the lower part of the supporting-standard, thence to the top of the standard, thence to the lower part 0f the standard, and thence to the Windlass -on the other car, and suitable guide-pulleys at the bottom ofthe standard and pulleylat the top thereof, all substantially as described.

PHILIP GURIDEN HABLAN. lVitnesses:

H. HUNNESHAGEN, C. J. HEIDMEYER. 

